ALEXANDRIA, Va., Sept. 24 -- United States Patent no. D1,148,814, issued on Sept. 22, was assigned to Makeblock Co. Ltd. (Shenzhen, China).
"Laser engraving machine" was invented by Dongdong Shi (Shenzhen, China) and Guangliang Hou (Shenzhen, China).
The patent was filed on Feb. 8, 2024, under Application No. D/928,203.
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